摘要: 参考资料:http://docs.oracle.com/database/122/SQLRF/Functions.htm#SQLRF006 Single-row functions return a single result row for every row of a queried table 阅读全文
posted @ 2017-10-08 11:59 Adina~ 阅读(1812) 评论(0) 推荐(0) 编辑